Philip, I’ve kept meaning to ask you for decades but did you ever find the root cause of all this noise- is this due to a bug in some version of a router OS or is this being caused by a malfunctioning script at the provider that triggers BGP updates?
From: NANOG <[email protected]> on behalf of Philip Smith <[email protected]> Date: Monday, 10 February 2025 at 6:32 AM To: James Bensley <[email protected]> Cc: NANOG <[email protected]> Subject: Re: Noisy prefixes in BGP I guess all we can do is keep highlighting the problem (I highlight Geoff's BGP Update report almost every BGP Best Practice training I run here in AsiaPac, for example) - but how to make noisy peers go away, longer term...? :-( > * These problems aren’t DFZ wide. Peer A might be sending a bajillion updates > to peer B, but peer B sees there is no change in the route and correctly > doesn’t forward the update onwards to it’s peers / public collectors. So this > is probably happing a lot more than we see via RIS or RouteViews. Only some > parts of the DFZ will be receiving the gratuitous updates/withdraws.

